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Individual Calculations January 2009 |
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| Sarkar, Arna Total change: 31.90 | |   |
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| The Telegraph School Chess Championship 2008 | Gorky Sadan,Kolkata,India | IND | 2008-09-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1708 | 1566 | 1.00 | 4 | -0.28 | 25 | -7.00 | |
|  Iyer, Vishal | | | 1848 | IND | 0.50 | 1 | 0.34 | 25 | 8.50 | |  Sumit, Kumar | | | 1748 | IND | 0.00 | 1 | -0.26 | 25 | -6.50 | | | Rishav, Mitra | | | 1508 | IND | 0.50 | 1 | -0.08 | 25 | -2.00 | | | Akshay, Khator | | | 1729 | IND | 0.00 | 1 | -0.28 | 25 | -7.00 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | | | 2ND INTERNATIONAL FIDE RATING CHESS CHAMPIONSHIP 2008 | Chakradharpur, Jharkhand, India | IND | 2008-10-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1916 | 1566 | 1.50 | 6 | 0.84 | 25 | 21.00 | |
| | Hossain, Monir | | | 1916 | BAN | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Samar, Chatterjee | | | 1916 | IND | 1.00 | 1 | 0.89 | 25 | 22.25 | | | Deobrat, Singh | | | 1916 | IND | 0.50 | 1 | 0.39 | 25 | 9.75 | | | Niraj, Niraula | | | 1916 | NEP | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Rabindra, Kumar Ojha | | | 1916 | IND | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Abul, Kashem | | | 1916 | BAN | 0.00 | 1 | -0.11 | 25 | -2.75 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | | | 8TH WBCA FIDE RATED CHESS TOURNAMENT 2008 | Kolkata/West Bengal/ India | IND | 2008-11-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1909 | 1566 | 0.50 | 5 | -0.07 | 25 | -1.75 | |
| | Dilip, Das | | | 1916 | IND | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Atishay, Ajmera | | | 1916 | IND | 0.50 | 1 | 0.39 | 25 | 9.75 | | | Datta, Nilabhro | | | 1916 | IND | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Antarip, Roy | | | 1916 | IND | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Subramanian, T V | | | 1883 | IND | 0.00 | 1 | -0.13 | 25 | -3.25 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | | NOTE: K factor changed | | 22nd National Under 13 Girls Chess Championship 2008 | Vellore Institute of Technology, Vellore, Tamilnadu, India | IND | 2008-11-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1797 | 1566 | 3.00 | 8 | 1.31 | 15 | 19.65 | |
| | Rathore, Sonakshi | | | 1854 | IND | 1.00 | 1 | 0.84 | 15 | 12.60 | | | Ivana Maria, Furtado | | wc | 1813 | IND | 0.50 | 1 | 0.31 | 15 | 4.65 | | | Nandhidhaa, P V | | | 1823 | IND | 1.00 | 1 | 0.82 | 15 | 12.30 | | | Lasya, G | | | 1706 | IND | 0.00 | 1 | -0.31 | 15 | -4.65 | | | Mahasweta, Kumar | | | 1816 | IND | 0.50 | 1 | 0.31 | 15 | 4.65 | | | Sunyasakta, Satpathy | | | 1744 | IND | 0.00 | 1 | -0.27 | 15 | -4.05 | | | Agnihotri, Ghosh | | | 1765 | IND | 0.00 | 1 | -0.24 | 15 | -3.60 | | | Vaishnavi, J | | | 1858 | IND | 0.00 | 1 | -0.15 | 15 | -2.25 | |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | |
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